Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-12-01T00:13:05.061Z Has data issue: false hasContentIssue false
  • English
  • Français

A New Proof of the Formulae for Right-Angled Spherical Triangles

Published online by Cambridge University Press:  20 January 2009

John Jack
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

It is assumed that the sines of the sides are proportional to the sines of the opposite angles.

ACB (Fig. 9) is a spherical Δ, with C a right angle.

Produce AC, AB to D and E so that

Draw the great ⊙ DEF and produce CB to meet it in F.

Then F is the pole of AD and A the pole of DF.

Type
Research Article
Information
Proceedings of the Edinburgh Mathematical Society , Volume 16 , February 1897 , pp. 39 - 40
Copyright
Copyright © Edinburgh Mathematical Society 1897